thrum

¹ American  

[thruhm] / θrʌm /

verb (used without object)

thrummed, thrumming

1. to play on a stringed instrument, as a guitar, by plucking the strings, especially in an idle, monotonous, or unskillful manner; strum.

2. to sound when thrummed on, as a guitar or similar stringed instrument.

3. to drum or tap idly with the fingers.

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verb (used with object)

thrummed, thrumming

1. to play (a stringed instrument, or a melody on it) by plucking the strings, especially in an idle, monotonous, or unskillful manner; strum.

2. to drum or tap idly on.

3. to recite or tell in a monotonous way.

noun

1. an act or sound of thrumming; dull, monotonous sound.

thrum ² American  

[thruhm] / θrʌm /

noun

1. one of the ends of the warp threads in a loom, left unwoven and remaining attached to the loom when the web is cut off.

2. thrums, the row or fringe of such threads.

3. any short piece of waste thread or yarn; tuft, tassel, or fringe of threads, as at the edge of a piece of cloth.

4. Nautical. Often thrums short bits of rope yarn used for making mats.

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verb (used with object)

thrummed, thrumming

1. Nautical. to insert short pieces of rope yarn through (canvas) and thus give it a rough surface, as for wrapping about a part to prevent chafing.

2. to furnish or cover with thrums, ends of thread, or tufts.

thrum ¹ British  

/ θrʌm /

noun

1. 1. any of the unwoven ends of warp thread remaining on the loom when the web has been removed

   2. such ends of thread collectively

2. a fringe or tassel of short unwoven threads

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verb

1. (tr) to trim with thrums

thrum ² British  

/ θrʌm /

verb

1. to strum rhythmically but without expression on (a musical instrument)

2. (intr) to drum incessantly

   rain thrummed on the roof

3. to repeat (something) monotonously

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noun

1. a repetitive strumming or recitation

Other Word Forms

• thrummer
  noun

Etymology

Origin of thrum¹

First recorded in 1545–55; imitative

Origin of thrum²

First recorded before 1000; Middle English noun thrum, thrum(m)e, “end-piece (from the warp of a loom)”, Old English -thrum (in tungethrum “ligament of the tongue”), cognate with Old High German drum “end-piece”; akin to Old Norse thrǫmr “brim, edge, verge,” Latin terminus, Greek térma “end”

Explanation

When you make a rhythmic strumming sound, either with your voice or a stringed instrument, you thrum. If you and your friends all play the guitar, it may be fun sometimes to sit around and thrum together, improvising tunes. This word can also be used as a noun, to describe the kind of melodic hum that guitar strings make when you strum them. So you might say you found your way back to the campsite by following the thrum of your mom's mandolin, or that you love the thrum of rain on the metal roof of your grandparents' house. Thrum, like strum and hum, is imitative, mimicking the sound it describes.

Example Sentences

See Examples For:

thrum thrummed thrumming

“Geopolitical gyrations, volatile short-term economic data and the incessant thrum of prediction markets all contribute to the cacophony,” to the point that many investors feel compelled to stick to the AI trade, she says.

From The Wall Street Journal ● Jul. 4, 2026

Turning the corner of the 15th floor corridor of the historic American Cement Building, a low thrum of electronic sounds seeps through the door of Archived, an L.A. luxury vintage curator.

From Los Angeles Times ● Apr. 17, 2026

You get a polite dotting of fruit, sure, but rarely that jammy, tart little thrum that only arrives when berries are given permission to fully collapse into themselves.

From Salon ● Dec. 16, 2025

Outside the new Estadio da Luz, yet to be built when Mourinho last coached Benfica, there was a thrum of media activity and excitement as news broke of the veteran boss' return.

From BBC ● Sep. 18, 2025

They thrum inside me at a comfortable pitch, plucking strings of my soul in places I haven’t tried to reach in a long time.

From "X: A Novel" by Ilyasah Shabazz

For decades, the city thrummed thanks to the burgeoning tech industry and became a plush playground for its ever-increasing number of workers.

From The Wall Street Journal ● Oct. 20, 2025

Their shantytown, nestled in the middle-class neighbourhood of Jodhpur Park, thrummed with life.

From BBC ● Dec. 16, 2024

By the 1980s, much of downtown was moribund; buildings that once thrummed with commerce were dilapidated and vacant or underused.

From Los Angeles Times ● Jun. 20, 2023

Gaylen Hansen’s warm, wry humor — which has thrummed through his paintings for decades — comes across over the phone.

From Seattle Times ● Jun. 12, 2023

What about Ivy? still thrummed too strongly in her brain.

From "The School for Whatnots" by Margaret Peterson Haddix

That thrumming sound of doubt doesn’t necessarily lead to murder, but it suggests that being born to privilege is hardly a ticket to a successful life.

From The Wall Street Journal ● Dec. 16, 2025

She’s always seeking her father, not just in Skinner the soldier but in herself too, the remnants of his presence thrumming through her memory.

From Los Angeles Times ● Sep. 5, 2025

In the 1970s, Black Sabbath prioritized gouging grooves, thrumming basslines and ponderous drums; they treated their albums like cohesive sonic statements.

From Salon ● Jul. 26, 2025

Also worthy of canonization: Larry Graham’s thrumming one-note bass line.

From Los Angeles Times ● Jun. 10, 2025

My body was thrumming with anxious unspent energy, and I could hear Chubs muttering to himself, as if trying to work through the night’s events.

From "The Darkest Minds" by Alexandra Bracken

Related Words

• croon
• moan
• mumble
• murmur
• purr
• sing
• strum
• throb
• trill
• warble
• whisper